43 Folders cracks me up. Not only does this tips-for-living blog have an article about reducing stuff to carry, it has multiple wiki lists and a meaningful pull quote from an Washington Post article about how the crap we carry reveals the existential crisis of modern living.
Reading their lists reminded me of how happy I became when I got rid of my inch-thick wallet and started carrying a tiny card case instead. Mine carries cash, a driver's license, two credit cards, an ATM card, and a piece of paper with essential info like health insurance policy codes and emergency phone numbers. I get a little sense of peace everytime I remember how little I have in my pockets. The Tumi product is great quality, too.